Plastic Hydraulic Plugs - BSP, JIC and ORFS

Push-in plastic plugs for blocking female ports while a machine is apart, in transit or in storage. Dust protection, not pressure sealing.

Brand: Ayrtec – mild steel body with a plated finish, manufactured to the standards listed below.

Watch: Why You Need JIC Plugs Caps & O Ring Kit When Doing Hydraulic Repairs

Thread Standards

• BSP Parallel Male – BSPP to ISO 228. It seals on a bonded washer against the port face or on a 60° cone, never on the thread itself.

How to Choose

• These are protective plugs, not pressure plugs. They keep dirt and moisture out. They do not hold hydraulic pressure and are not a repair.
• Sized to suit BSP, JIC and ORFS ports. Pick by the port you are protecting.
• Cheap enough to keep a full range in the truck and throw away after use.

Technicians Advice

Fit them the moment a port is opened, not at the end of the job. Most contamination gets in during the first few minutes a port is exposed, while everyone is still looking for the right spanner.

Where You’ll Find It

• BSP Parallel Male – Valve and manifold ports on Australian, British and Asian-built equipment, and most locally made hose ends. The default port thread on Australian truck and agricultural hydraulics.
• JIC 37° Male – Hose ends and ports on imported US and Asian machinery – Caterpillar, John Deere, Case IH, New Holland, Bobcat, Kubota, Takeuchi.
• ORFS Male – High-pressure, high-vibration circuits on late-model excavators, drill rigs, crushers and forestry gear.

Cross-Reference

• BSP Parallel Male – BSPP to ISO 228 / BS 2779, written G. Also called BSP parallel or gas thread.
• JIC 37° Male – SAE J514 / ISO 8434-2 37° flare. Parker call this series Triple-Lok. The industrial cousin of the AN 37° flare used in aviation and motorsport.
• ORFS Male – SAE J1453 / ISO 8434-3 O-ring face seal. Parker call this series Seal-Lok. Also written ORFS or flat face.

Parker, Gates, Aeroquip and Ryco all manufacture to these same standards under their own part numbering, so a fitting built to the standard above will mate with theirs.

Cross-references are given at series level as a guide to the standard, not as a part-for-part substitution. Always confirm the thread form, size and seal type against the port before ordering.

📐Dimensions & thread sizes – every size in this range

← Swipe the table sideways to see every measurement →

Part code	A	B	H	C	D	Material	Finish
PPB-04	–	–	12.8mm	–	18.8mm	Mild steel	Plated finish
PPB-06	–	–	12mm	–	22.9mm	Mild steel	Plated finish
PPJ-07	–	13.5mm	–	15.75mm	4.83mm	Mild steel	Plated finish
PPB-08	–	–	17.3mm	–	28mm	Mild steel	Plated finish
PPJ-09	–	12.7mm	–	20.57mm	6.35mm	Mild steel	Plated finish
PPB-12	–	–	17mm	–	32.3mm	Mild steel	Plated finish
PPJ-12	–	19.05mm	–	23.88mm	6.35mm	Mild steel	Plated finish
PPO-13	12.7mm	23.9mm	–	6.35mm	–	Mild steel	Plated finish
PPJ-14	–	22.10mm	–	26.93mm	6.35mm	Mild steel	Plated finish
PPB-16	–	–	16.9mm	–	39.8mm	Mild steel	Plated finish
PPO-16	15.00mm	29.50mm	–	6.35mm	–	Mild steel	Plated finish
PPJ-17	–	22.61mm	–	31.75mm	6.35mm	Mild steel	Plated finish
PPO-19	16.00mm	33.80mm	–	6.35mm	–	Mild steel	Plated finish
PPB-20	–	–	20.9mm	–	49.9mm	Mild steel	Plated finish
PPO-23	19.00mm	41.40mm	–	6.35mm	–	Mild steel	Plated finish
PPB-24	–	–	16.9mm	–	55.2mm	Mild steel	Plated finish
PPJ-26	–	23.62mm	–	50.8mm	6.35mm	Mild steel	Plated finish
PPB-32	–	–	17.5mm	–	73.7mm	Mild steel	Plated finish

Key: H centre to face, C across corners, D outside diameter. Measurements in millimetres unless shown otherwise. Thread columns show what each end mates with. Dimensions are nominal – check critical clearances against the part.

Downloads

📄 Thread Identification Chart (PDF)

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